1 files changed, 68 insertions, 0 deletions
diff --git a/src/edit.c b/src/edit.c
new file mode 100644
index 0000000..93ad44f
--- /dev/null
+++ b/src/edit.c
@@ -0,0 +1,68 @@
+ /**
+  * Journal-tools provides simple tools for keeping journal entries
+  * Copyright (C) 2023  Aaron Ball, nullspoon@oper.io
+  *
+  * This program is free software: you can redistribute it and/or modify
+  * it under the terms of the GNU General Public License as published by
+  * the Free Software Foundation, either version 3 of the License, or
+  * (at your option) any later version.
+  *
+  * This program is distributed in the hope that it will be useful,
+  * but WITHOUT ANY WARRANTY; without even the implied warranty of
+  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  * GNU General Public License for more details.
+  *
+  * You should have received a copy of the GNU General Public License
+  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+  */
+#include "edit.h"
+
+// A sloppy copy function
+int _cp(char* src, char* dest) {
+  FILE* fdsrc = NULL;
+  FILE* fddest = NULL;
+  unsigned int buf = 0;
+
+  fdsrc = fopen(src, "r");
+  if(!fdsrc) {
+    fprintf(stderr, "Could not open %s for reading\n", src);
+    return -1;
+  }
+
+  fddest = fopen(dest, "w");
+  if(!fddest) {
+    fprintf(stderr, "Could not open %s for writing\n", dest);
+    return -1;
+  }
+
+  while((buf = fgetc(fdsrc)) != EOF)
+    fputc(buf, fddest);
+
+  fclose(fdsrc);
+  fclose(fddest);
+  return 0;
+}
+
+int edit_exec(char* dir, char* file, char* ext) {
+  char* editor = "vim";
+  char templatebuf[512] = {0};
+  char filebuf[512] = {0};
+  char cmdbuf[1024] = {0};
+
+  if(getenv("EDITOR") != NULL)
+    editor = getenv("EDITOR");
+
+  // Populate path and template buffers
+  snprintf(filebuf, 512, "%s/%s.%s", dir, file, ext);
+  snprintf(templatebuf, 512, "%s/.template.%s", dir, ext);
+
+  // If a template file is found, copy it to the new path before editing
+  // Only do this is the target file doesn't yet exist. No overwrite.
+  if(access(templatebuf, R_OK) == 0 && access(filebuf, R_OK) != 0)
+    if(_cp(templatebuf, filebuf) != 0)
+      exit(1);
+
+  // Construct the command and execute
+  sprintf(cmdbuf, "%s %s", editor, filebuf);
+  return system(cmdbuf);
+}